BULK MATERIAL DENSITY TABLE - Tapco Inc
Calcium Carbonate (See Coal,Limestone)-Calcium Fluoride (See Fluorspar)- ... Concrete, In Place, Stone 130-150 Concrete, Pre-Mix, Dry 85-120 Copper Ore 120-150 Copper Ore, Crushed 100-150 ... Iron Ore, Crushed 135-150 Iron Oxide, Pigment 25 Iron Oxide, Mill Scale 75
How Cement Is Made - Portland Cement Association
Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron and other ingredients. Common materials used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace slag, silica sand, and iron ore.